Diver&#39;s mouthpiece fixture



FIG. 1 is a left side elevational view of a diver's mouthpiece fixture showing our new design, the broken lines are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a rear elevational view thereof. 

The ornamental design for a diver's mouthpiece fixture, as shown and described. 